audio:enable mmap and raw on BT am: 4581323719 am: 3497cd2428

Original change: https://googleplex-android-review.googlesource.com/c/device/google/lynx/+/21572785

Change-Id: Ib5b3594713aa6bcc661703bc2a52278f51b725dd
Signed-off-by: Automerger Merge Worker <[email protected]>